./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b933e5eb5edc3f9dba2cad9f501770deba788f6d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 18:24:43,970 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 18:24:43,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 18:24:43,978 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 18:24:43,978 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 18:24:43,979 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 18:24:43,980 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 18:24:43,980 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 18:24:43,981 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 18:24:43,981 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 18:24:43,982 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 18:24:43,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 18:24:43,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 18:24:43,983 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 18:24:43,983 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 18:24:43,984 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 18:24:43,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 18:24:43,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 18:24:43,986 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 18:24:43,987 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 18:24:43,987 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 18:24:43,988 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 18:24:43,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 18:24:43,989 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 18:24:43,990 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 18:24:43,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 18:24:43,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 18:24:43,991 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 18:24:43,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 18:24:43,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 18:24:43,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 18:24:43,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 18:24:43,993 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 18:24:43,993 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 18:24:43,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 18:24:43,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 18:24:43,994 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 18:24:44,001 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 18:24:44,002 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 18:24:44,002 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 18:24:44,003 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 18:24:44,003 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 18:24:44,003 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 18:24:44,003 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 18:24:44,003 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 18:24:44,004 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 18:24:44,004 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 18:24:44,004 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 18:24:44,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 18:24:44,004 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 18:24:44,004 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 18:24:44,004 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 18:24:44,004 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 18:24:44,005 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 18:24:44,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 18:24:44,005 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 18:24:44,005 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 18:24:44,005 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 18:24:44,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 18:24:44,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 18:24:44,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 18:24:44,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 18:24:44,006 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 18:24:44,006 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 18:24:44,006 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 18:24:44,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 18:24:44,006 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b933e5eb5edc3f9dba2cad9f501770deba788f6d [2018-11-18 18:24:44,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 18:24:44,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 18:24:44,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 18:24:44,046 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 18:24:44,046 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 18:24:44,047 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c [2018-11-18 18:24:44,091 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/data/ed28f5b8e/4349abf3efe54a96b89c024ff15eebef/FLAGf3737c523 [2018-11-18 18:24:44,509 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 18:24:44,510 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/sv-benchmarks/c/eca-rers2012/Problem02_label46_true-unreach-call_false-termination.c [2018-11-18 18:24:44,520 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/data/ed28f5b8e/4349abf3efe54a96b89c024ff15eebef/FLAGf3737c523 [2018-11-18 18:24:44,860 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/data/ed28f5b8e/4349abf3efe54a96b89c024ff15eebef [2018-11-18 18:24:44,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 18:24:44,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 18:24:44,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 18:24:44,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 18:24:44,869 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 18:24:44,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:24:44" (1/1) ... [2018-11-18 18:24:44,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269ec442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:44, skipping insertion in model container [2018-11-18 18:24:44,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:24:44" (1/1) ... [2018-11-18 18:24:44,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 18:24:44,921 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 18:24:45,150 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:24:45,153 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 18:24:45,220 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:24:45,232 INFO L195 MainTranslator]: Completed translation [2018-11-18 18:24:45,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45 WrapperNode [2018-11-18 18:24:45,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 18:24:45,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 18:24:45,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 18:24:45,234 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 18:24:45,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 18:24:45,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 18:24:45,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 18:24:45,335 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 18:24:45,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... [2018-11-18 18:24:45,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 18:24:45,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 18:24:45,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 18:24:45,378 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 18:24:45,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 18:24:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 18:24:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 18:24:45,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 18:24:46,847 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 18:24:46,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:24:46 BoogieIcfgContainer [2018-11-18 18:24:46,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 18:24:46,848 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 18:24:46,848 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 18:24:46,857 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 18:24:46,857 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:24:46" (1/1) ... [2018-11-18 18:24:46,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:24:46,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:46,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 86 states and 164 transitions. [2018-11-18 18:24:46,899 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 164 transitions. [2018-11-18 18:24:46,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-18 18:24:46,903 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:47,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:47,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:47,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 165 states and 244 transitions. [2018-11-18 18:24:47,663 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 244 transitions. [2018-11-18 18:24:47,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-11-18 18:24:47,665 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:48,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 245 states and 330 transitions. [2018-11-18 18:24:48,250 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 330 transitions. [2018-11-18 18:24:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-18 18:24:48,252 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:48,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 250 states and 337 transitions. [2018-11-18 18:24:48,459 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 337 transitions. [2018-11-18 18:24:48,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-18 18:24:48,460 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 260 states and 352 transitions. [2018-11-18 18:24:48,644 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 352 transitions. [2018-11-18 18:24:48,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-18 18:24:48,649 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:48,706 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 18:24:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:49,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 271 states and 372 transitions. [2018-11-18 18:24:49,084 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 372 transitions. [2018-11-18 18:24:49,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-11-18 18:24:49,085 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:49,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:49,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 274 states and 375 transitions. [2018-11-18 18:24:49,137 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 375 transitions. [2018-11-18 18:24:49,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-18 18:24:49,138 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 18:24:49,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:49,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 275 states and 377 transitions. [2018-11-18 18:24:49,275 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 377 transitions. [2018-11-18 18:24:49,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-18 18:24:49,276 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 18:24:49,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 279 states and 382 transitions. [2018-11-18 18:24:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 382 transitions. [2018-11-18 18:24:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-18 18:24:49,416 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:49,452 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 18:24:49,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:49,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 284 states and 389 transitions. [2018-11-18 18:24:49,667 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 389 transitions. [2018-11-18 18:24:49,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 18:24:49,668 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:50,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 302 states and 420 transitions. [2018-11-18 18:24:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 420 transitions. [2018-11-18 18:24:50,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-18 18:24:50,111 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:50,131 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:50,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:50,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 309 states and 428 transitions. [2018-11-18 18:24:50,222 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 428 transitions. [2018-11-18 18:24:50,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-18 18:24:50,223 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:50,246 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 311 states and 430 transitions. [2018-11-18 18:24:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 430 transitions. [2018-11-18 18:24:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-18 18:24:50,264 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:50,368 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:50,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 325 states and 449 transitions. [2018-11-18 18:24:50,768 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 449 transitions. [2018-11-18 18:24:50,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-18 18:24:50,768 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 329 states and 455 transitions. [2018-11-18 18:24:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 455 transitions. [2018-11-18 18:24:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-18 18:24:50,922 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:50,943 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:51,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 334 states and 463 transitions. [2018-11-18 18:24:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 463 transitions. [2018-11-18 18:24:51,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-18 18:24:51,180 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 338 states and 467 transitions. [2018-11-18 18:24:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 467 transitions. [2018-11-18 18:24:51,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-18 18:24:51,362 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 342 states and 472 transitions. [2018-11-18 18:24:51,482 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 472 transitions. [2018-11-18 18:24:51,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-11-18 18:24:51,483 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:52,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:52,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 366 states and 504 transitions. [2018-11-18 18:24:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 504 transitions. [2018-11-18 18:24:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-18 18:24:52,192 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:52,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:52,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 371 states and 510 transitions. [2018-11-18 18:24:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 510 transitions. [2018-11-18 18:24:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-11-18 18:24:52,348 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 18:24:52,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:52,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 451 states and 594 transitions. [2018-11-18 18:24:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 594 transitions. [2018-11-18 18:24:52,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-18 18:24:52,996 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 474 states and 625 transitions. [2018-11-18 18:24:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 625 transitions. [2018-11-18 18:24:53,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-18 18:24:53,933 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:54,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:54,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 478 states and 629 transitions. [2018-11-18 18:24:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 629 transitions. [2018-11-18 18:24:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-18 18:24:54,142 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 482 states and 633 transitions. [2018-11-18 18:24:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 633 transitions. [2018-11-18 18:24:54,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-18 18:24:54,347 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:54,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 486 states and 637 transitions. [2018-11-18 18:24:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 637 transitions. [2018-11-18 18:24:54,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-18 18:24:54,560 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 18:24:54,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 491 states and 643 transitions. [2018-11-18 18:24:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 643 transitions. [2018-11-18 18:24:54,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-18 18:24:54,813 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:54,836 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 18:24:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:54,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 494 states and 645 transitions. [2018-11-18 18:24:54,957 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 645 transitions. [2018-11-18 18:24:54,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-18 18:24:54,958 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 18:24:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 496 states and 646 transitions. [2018-11-18 18:24:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 646 transitions. [2018-11-18 18:24:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-18 18:24:55,113 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:55,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:55,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 502 states and 654 transitions. [2018-11-18 18:24:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 654 transitions. [2018-11-18 18:24:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-18 18:24:55,227 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:55,555 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:57,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 535 states and 701 transitions. [2018-11-18 18:24:57,038 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 701 transitions. [2018-11-18 18:24:57,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-18 18:24:57,039 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:57,070 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 539 states and 705 transitions. [2018-11-18 18:24:57,276 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 705 transitions. [2018-11-18 18:24:57,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-18 18:24:57,277 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:57,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 543 states and 709 transitions. [2018-11-18 18:24:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 709 transitions. [2018-11-18 18:24:57,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-18 18:24:57,580 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-18 18:24:57,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:57,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 545 states and 710 transitions. [2018-11-18 18:24:57,703 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 710 transitions. [2018-11-18 18:24:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-18 18:24:57,704 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:24:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:58,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 555 states and 724 transitions. [2018-11-18 18:24:58,300 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 724 transitions. [2018-11-18 18:24:58,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-18 18:24:58,301 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:24:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 576 states and 747 transitions. [2018-11-18 18:24:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 747 transitions. [2018-11-18 18:24:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-18 18:24:58,655 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:24:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:24:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 590 states and 764 transitions. [2018-11-18 18:24:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 764 transitions. [2018-11-18 18:24:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-11-18 18:24:59,550 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:24:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:24:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:00,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 606 states and 785 transitions. [2018-11-18 18:25:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 785 transitions. [2018-11-18 18:25:00,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 18:25:00,163 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 18:25:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:00,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 609 states and 787 transitions. [2018-11-18 18:25:00,318 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 787 transitions. [2018-11-18 18:25:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-18 18:25:00,319 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:00,364 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:00,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:00,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 614 states and 795 transitions. [2018-11-18 18:25:00,781 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 795 transitions. [2018-11-18 18:25:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-18 18:25:00,781 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:01,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 618 states and 799 transitions. [2018-11-18 18:25:01,000 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 799 transitions. [2018-11-18 18:25:01,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 18:25:01,000 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 18:25:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 623 states and 803 transitions. [2018-11-18 18:25:01,152 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 803 transitions. [2018-11-18 18:25:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 18:25:01,152 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-18 18:25:01,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 643 states and 827 transitions. [2018-11-18 18:25:01,670 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 827 transitions. [2018-11-18 18:25:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-18 18:25:01,671 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:01,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 648 states and 832 transitions. [2018-11-18 18:25:01,754 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 832 transitions. [2018-11-18 18:25:01,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-18 18:25:01,755 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:01,827 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 673 states and 860 transitions. [2018-11-18 18:25:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 860 transitions. [2018-11-18 18:25:01,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-18 18:25:01,919 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:02,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 692 states and 882 transitions. [2018-11-18 18:25:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 882 transitions. [2018-11-18 18:25:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-18 18:25:02,857 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:02,929 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 721 states and 911 transitions. [2018-11-18 18:25:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 911 transitions. [2018-11-18 18:25:03,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-18 18:25:03,467 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:03,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 722 states and 912 transitions. [2018-11-18 18:25:03,529 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 912 transitions. [2018-11-18 18:25:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-18 18:25:03,530 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 18:25:03,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 724 states and 914 transitions. [2018-11-18 18:25:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 914 transitions. [2018-11-18 18:25:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-18 18:25:03,682 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-18 18:25:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 754 states and 950 transitions. [2018-11-18 18:25:04,345 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 950 transitions. [2018-11-18 18:25:04,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 18:25:04,346 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 771 states and 967 transitions. [2018-11-18 18:25:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 967 transitions. [2018-11-18 18:25:04,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 18:25:04,428 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:04,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:04,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 807 states and 1005 transitions. [2018-11-18 18:25:04,688 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1005 transitions. [2018-11-18 18:25:04,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-18 18:25:04,689 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:04,721 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-11-18 18:25:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 809 states and 1006 transitions. [2018-11-18 18:25:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1006 transitions. [2018-11-18 18:25:04,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-18 18:25:04,824 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:05,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 819 states and 1016 transitions. [2018-11-18 18:25:05,162 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1016 transitions. [2018-11-18 18:25:05,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-18 18:25:05,163 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 831 states and 1029 transitions. [2018-11-18 18:25:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1029 transitions. [2018-11-18 18:25:05,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-18 18:25:05,573 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:05,637 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:05,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 835 states and 1033 transitions. [2018-11-18 18:25:05,827 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1033 transitions. [2018-11-18 18:25:05,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-18 18:25:05,828 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:06,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:06,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 840 states and 1039 transitions. [2018-11-18 18:25:06,160 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1039 transitions. [2018-11-18 18:25:06,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-18 18:25:06,161 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:06,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 842 states and 1041 transitions. [2018-11-18 18:25:06,545 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1041 transitions. [2018-11-18 18:25:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-18 18:25:06,546 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:07,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:07,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 849 states and 1055 transitions. [2018-11-18 18:25:07,280 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1055 transitions. [2018-11-18 18:25:07,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-18 18:25:07,280 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:07,396 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-18 18:25:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:08,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 908 states and 1118 transitions. [2018-11-18 18:25:08,250 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1118 transitions. [2018-11-18 18:25:08,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-18 18:25:08,251 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:09,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:09,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 919 states and 1136 transitions. [2018-11-18 18:25:09,050 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1136 transitions. [2018-11-18 18:25:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-18 18:25:09,051 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:09,108 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 18:25:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 920 states and 1141 transitions. [2018-11-18 18:25:09,155 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1141 transitions. [2018-11-18 18:25:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-11-18 18:25:09,156 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:09,187 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:09,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:09,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 942 states and 1166 transitions. [2018-11-18 18:25:09,311 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1166 transitions. [2018-11-18 18:25:09,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-18 18:25:09,311 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:09,359 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 949 states and 1177 transitions. [2018-11-18 18:25:09,607 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1177 transitions. [2018-11-18 18:25:09,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-11-18 18:25:09,607 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 969 states and 1200 transitions. [2018-11-18 18:25:09,944 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1200 transitions. [2018-11-18 18:25:09,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-11-18 18:25:09,945 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:10,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 973 states and 1205 transitions. [2018-11-18 18:25:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1205 transitions. [2018-11-18 18:25:10,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-18 18:25:10,010 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 135 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:12,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 994 states and 1237 transitions. [2018-11-18 18:25:12,544 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1237 transitions. [2018-11-18 18:25:12,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-18 18:25:12,544 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 135 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1002 states and 1246 transitions. [2018-11-18 18:25:13,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1246 transitions. [2018-11-18 18:25:13,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-18 18:25:13,024 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 135 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:13,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1010 states and 1255 transitions. [2018-11-18 18:25:13,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1255 transitions. [2018-11-18 18:25:13,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-18 18:25:13,536 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-18 18:25:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1015 states and 1259 transitions. [2018-11-18 18:25:13,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1259 transitions. [2018-11-18 18:25:13,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-18 18:25:13,713 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 86 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 18:25:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1020 states and 1264 transitions. [2018-11-18 18:25:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1264 transitions. [2018-11-18 18:25:14,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-11-18 18:25:14,137 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1022 states and 1267 transitions. [2018-11-18 18:25:14,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1267 transitions. [2018-11-18 18:25:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-18 18:25:14,419 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:14,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:14,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1029 states and 1276 transitions. [2018-11-18 18:25:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1276 transitions. [2018-11-18 18:25:14,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-18 18:25:14,760 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:15,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:15,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1034 states and 1282 transitions. [2018-11-18 18:25:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1282 transitions. [2018-11-18 18:25:15,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-18 18:25:15,294 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1037 states and 1284 transitions. [2018-11-18 18:25:15,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1284 transitions. [2018-11-18 18:25:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-11-18 18:25:15,605 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:15,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1039 states and 1285 transitions. [2018-11-18 18:25:15,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1285 transitions. [2018-11-18 18:25:15,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-18 18:25:15,900 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:15,949 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:16,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1064 states and 1310 transitions. [2018-11-18 18:25:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1310 transitions. [2018-11-18 18:25:16,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-11-18 18:25:16,670 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-18 18:25:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:16,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1076 states and 1321 transitions. [2018-11-18 18:25:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1321 transitions. [2018-11-18 18:25:16,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-11-18 18:25:16,753 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:16,786 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 18:25:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1082 states and 1327 transitions. [2018-11-18 18:25:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1327 transitions. [2018-11-18 18:25:16,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-11-18 18:25:16,824 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 18:25:17,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:17,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1083 states and 1328 transitions. [2018-11-18 18:25:17,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1328 transitions. [2018-11-18 18:25:17,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-18 18:25:17,100 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-18 18:25:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:17,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1102 states and 1348 transitions. [2018-11-18 18:25:17,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1348 transitions. [2018-11-18 18:25:17,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-11-18 18:25:17,337 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:17,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:17,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1108 states and 1355 transitions. [2018-11-18 18:25:17,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1355 transitions. [2018-11-18 18:25:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-18 18:25:17,796 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1109 states and 1355 transitions. [2018-11-18 18:25:17,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1355 transitions. [2018-11-18 18:25:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-11-18 18:25:17,942 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:18,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:18,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1114 states and 1360 transitions. [2018-11-18 18:25:18,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1360 transitions. [2018-11-18 18:25:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-11-18 18:25:18,353 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:18,503 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 18:25:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:19,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1125 states and 1379 transitions. [2018-11-18 18:25:19,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1379 transitions. [2018-11-18 18:25:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-11-18 18:25:19,598 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 18:25:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:19,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1129 states and 1384 transitions. [2018-11-18 18:25:19,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1384 transitions. [2018-11-18 18:25:19,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-11-18 18:25:19,891 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:19,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1132 states and 1387 transitions. [2018-11-18 18:25:19,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1387 transitions. [2018-11-18 18:25:19,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-11-18 18:25:19,951 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:20,121 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 18:25:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1137 states and 1395 transitions. [2018-11-18 18:25:20,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1395 transitions. [2018-11-18 18:25:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-11-18 18:25:20,762 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-11-18 18:25:20,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1142 states and 1399 transitions. [2018-11-18 18:25:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1399 transitions. [2018-11-18 18:25:20,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-11-18 18:25:20,959 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 104 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 18:25:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1172 states and 1431 transitions. [2018-11-18 18:25:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1431 transitions. [2018-11-18 18:25:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-11-18 18:25:21,803 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 104 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 18:25:22,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:22,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1177 states and 1437 transitions. [2018-11-18 18:25:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1437 transitions. [2018-11-18 18:25:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-11-18 18:25:22,181 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 104 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 18:25:22,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:22,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1181 states and 1441 transitions. [2018-11-18 18:25:22,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1441 transitions. [2018-11-18 18:25:22,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-18 18:25:22,560 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:22,607 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-18 18:25:22,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1210 states and 1470 transitions. [2018-11-18 18:25:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1470 transitions. [2018-11-18 18:25:22,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-18 18:25:22,769 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 152 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1299 states and 1577 transitions. [2018-11-18 18:25:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1577 transitions. [2018-11-18 18:25:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-18 18:25:28,435 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 152 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1312 states and 1593 transitions. [2018-11-18 18:25:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1593 transitions. [2018-11-18 18:25:30,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-18 18:25:30,141 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 152 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1318 states and 1598 transitions. [2018-11-18 18:25:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1598 transitions. [2018-11-18 18:25:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-11-18 18:25:30,853 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 56 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-18 18:25:31,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1325 states and 1606 transitions. [2018-11-18 18:25:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1606 transitions. [2018-11-18 18:25:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-11-18 18:25:31,656 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:31,782 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 120 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 18:25:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1351 states and 1637 transitions. [2018-11-18 18:25:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1637 transitions. [2018-11-18 18:25:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-11-18 18:25:32,464 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 120 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 18:25:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1356 states and 1644 transitions. [2018-11-18 18:25:32,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1644 transitions. [2018-11-18 18:25:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-11-18 18:25:32,904 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 120 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 18:25:33,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1360 states and 1648 transitions. [2018-11-18 18:25:33,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1648 transitions. [2018-11-18 18:25:33,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-11-18 18:25:33,311 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 120 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 18:25:33,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1364 states and 1652 transitions. [2018-11-18 18:25:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1652 transitions. [2018-11-18 18:25:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-18 18:25:33,716 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-11-18 18:25:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:34,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1371 states and 1659 transitions. [2018-11-18 18:25:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1659 transitions. [2018-11-18 18:25:34,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-11-18 18:25:34,583 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:34,645 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-11-18 18:25:34,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1375 states and 1663 transitions. [2018-11-18 18:25:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1663 transitions. [2018-11-18 18:25:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-11-18 18:25:34,942 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:34,999 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 159 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:35,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1377 states and 1667 transitions. [2018-11-18 18:25:35,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1667 transitions. [2018-11-18 18:25:35,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-11-18 18:25:35,226 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 159 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:25:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:35,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1379 states and 1669 transitions. [2018-11-18 18:25:35,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1669 transitions. [2018-11-18 18:25:35,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-11-18 18:25:35,554 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:35,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:35,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1396 states and 1685 transitions. [2018-11-18 18:25:35,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1685 transitions. [2018-11-18 18:25:35,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-11-18 18:25:35,658 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 18:25:35,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1434 states and 1725 transitions. [2018-11-18 18:25:35,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1725 transitions. [2018-11-18 18:25:35,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-11-18 18:25:35,931 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 70 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 18:25:36,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1514 states and 1805 transitions. [2018-11-18 18:25:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 1805 transitions. [2018-11-18 18:25:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-18 18:25:36,862 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-11-18 18:25:36,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:36,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1517 states and 1807 transitions. [2018-11-18 18:25:36,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 1807 transitions. [2018-11-18 18:25:36,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-11-18 18:25:36,927 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1521 states and 1812 transitions. [2018-11-18 18:25:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1812 transitions. [2018-11-18 18:25:37,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-18 18:25:37,413 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:37,467 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-11-18 18:25:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:37,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1526 states and 1817 transitions. [2018-11-18 18:25:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1817 transitions. [2018-11-18 18:25:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-18 18:25:37,932 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 18:25:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1531 states and 1822 transitions. [2018-11-18 18:25:38,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1822 transitions. [2018-11-18 18:25:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-11-18 18:25:38,269 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-18 18:25:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:38,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1573 states and 1865 transitions. [2018-11-18 18:25:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 1865 transitions. [2018-11-18 18:25:38,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-11-18 18:25:38,521 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-11-18 18:25:39,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1653 states and 1947 transitions. [2018-11-18 18:25:39,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 1947 transitions. [2018-11-18 18:25:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-11-18 18:25:39,039 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-18 18:25:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:41,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1672 states and 1976 transitions. [2018-11-18 18:25:41,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1976 transitions. [2018-11-18 18:25:41,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-11-18 18:25:41,749 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-18 18:25:42,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:42,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1674 states and 1978 transitions. [2018-11-18 18:25:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 1978 transitions. [2018-11-18 18:25:42,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-11-18 18:25:42,238 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-18 18:25:42,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:42,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1678 states and 1982 transitions. [2018-11-18 18:25:42,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 1982 transitions. [2018-11-18 18:25:42,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-11-18 18:25:42,809 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2018-11-18 18:25:43,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1681 states and 1984 transitions. [2018-11-18 18:25:43,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 1984 transitions. [2018-11-18 18:25:43,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-11-18 18:25:43,045 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:43,208 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-11-18 18:25:44,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:44,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 1753 states and 2060 transitions. [2018-11-18 18:25:44,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2060 transitions. [2018-11-18 18:25:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-11-18 18:25:44,510 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-11-18 18:25:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1672 states and 1966 transitions. [2018-11-18 18:25:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1966 transitions. [2018-11-18 18:25:44,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-11-18 18:25:44,646 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:25:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:25:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-11-18 18:25:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:25:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1590 states and 1882 transitions. [2018-11-18 18:25:44,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 1882 transitions. [2018-11-18 18:25:44,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 18:25:44,756 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 120 iterations. [2018-11-18 18:25:44,763 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 18:25:46,065 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 25 [2018-11-18 18:25:46,433 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2018-11-18 18:25:46,866 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2018-11-18 18:25:49,396 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2018-11-18 18:25:49,755 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2018-11-18 18:25:50,085 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 18:25:50,087 INFO L579 CodeCheckObserver]: Invariant with dag size 26 [2018-11-18 18:25:50,095 INFO L579 CodeCheckObserver]: Invariant with dag size 26 [2018-11-18 18:25:50,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 06:25:50 ImpRootNode [2018-11-18 18:25:50,096 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 18:25:50,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 18:25:50,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 18:25:50,097 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 18:25:50,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:24:46" (3/4) ... [2018-11-18 18:25:50,102 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 18:25:50,118 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 112 nodes and edges [2018-11-18 18:25:50,119 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-18 18:25:50,120 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 18:25:50,121 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 18:25:50,229 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8b755fee-dc3d-458b-9fdf-3cec3b72ad69/bin-2019/ukojak/witness.graphml [2018-11-18 18:25:50,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 18:25:50,230 INFO L168 Benchmark]: Toolchain (without parser) took 65366.30 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 956.6 MB in the beginning and 927.6 MB in the end (delta: 29.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 11.5 GB. [2018-11-18 18:25:50,231 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:25:50,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.09 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 927.0 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-18 18:25:50,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 927.0 MB in the beginning and 1.1 GB in the end (delta: -210.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-18 18:25:50,231 INFO L168 Benchmark]: Boogie Preprocessor took 42.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 18:25:50,232 INFO L168 Benchmark]: RCFGBuilder took 1470.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.7 MB in the end (delta: 241.8 MB). Peak memory consumption was 241.8 MB. Max. memory is 11.5 GB. [2018-11-18 18:25:50,232 INFO L168 Benchmark]: CodeCheck took 63248.09 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 890.7 MB in the beginning and 927.6 MB in the end (delta: -36.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-18 18:25:50,232 INFO L168 Benchmark]: Witness Printer took 132.82 ms. Allocated memory is still 2.7 GB. Free memory is still 927.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:25:50,234 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 228 locations, 1 error locations. SAFE Result, 57.8s OverallTime, 120 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -808404160 SDtfs, -793250864 SDslu, -407504416 SDs, 0 SdLazy, 452385452 SolverSat, -804614236 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 271.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122467 GetRequests, 120500 SyntacticMatches, 1207 SemanticMatches, 760 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411004 ImplicationChecksByTransitivity, 45.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 19249 NumberOfCodeBlocks, 19249 NumberOfCodeBlocksAsserted, 119 NumberOfCheckSat, 19130 ConstructedInterpolants, 0 QuantifiedInterpolants, 8223853 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 119 InterpolantComputations, 95 PerfectInterpolantSequences, 14156/14509 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 508]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((a11 == 1 && !(a28 == 10)) || (!(a28 == 11) && !(a28 == 10))) || a25 == 1) || (a28 == 10 && !(a11 == 1))) || (!(a19 == 1) && !(a28 == 10))) || (!(a17 == 8) && a11 == 1) - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((a25 == 1 || (!(a19 == 1) && !(a28 == 10))) || (!(a28 == 11) && !(a28 == 10))) || (a28 == 10 && !(a11 == 1))) || (a11 == 1 && !(a28 == 10))) || (!(a17 == 8) && a11 == 1) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.09 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 927.0 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 927.0 MB in the beginning and 1.1 GB in the end (delta: -210.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1470.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.7 MB in the end (delta: 241.8 MB). Peak memory consumption was 241.8 MB. Max. memory is 11.5 GB. * CodeCheck took 63248.09 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 890.7 MB in the beginning and 927.6 MB in the end (delta: -36.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 132.82 ms. Allocated memory is still 2.7 GB. Free memory is still 927.6 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...